Invertebrate Systematics Invertebrate Systematics Society
Systematics, phylogeny and biogeography
RESEARCH ARTICLE

Molecular and morphological evidence for a new genus of small trapdoor spiders from arid Western Australia (Araneae : Mygalomorphae : Nemesiidae : Anaminae)

Mark A. Castalanelli A B , Joel A. Huey A C D , Mia J. Hillyer A and Mark S. Harvey A C D E F G
+ Author Affiliations
- Author Affiliations

A Department of Terrestrial Zoology, Western Australian Museum, Locked Bag 49, Welshpool DC, WA 6986, Australia.

B EcoDiagnostics, 147 Underwood Avenue, Floreat, Western Australia 6014, Australia.

C Adjunct, School of Animal Biology, University of Western Australia, Crawley, WA 6009, Australia.

D Adjunct, School of Natural Sciences, Edith Cowan University, Joondalup, WA 6027, Australia.

E Research Associate, Division of Invertebrate Zoology, American Museum of Natural History, Central Park West & 79th Street, New York, NY 10024, USA.

F Research Associate, Department of Entomology, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA.

G Corresponding author. Email: mark.harvey@museum.wa.gov.au

Invertebrate Systematics 31(4) 492-505 https://doi.org/10.1071/IS16061
Submitted: 27 August 2016  Accepted: 27 March 2017   Published: 27 July 2017

Abstract

The trapdoor spider family Nemesiidae comprises 14 genera in Australia, the majority of which are included in the subfamily Anaminae. Here we provide evidence from a multigene molecular analysis of most Australian genera of Anaminae for a previously unrecognised clade that also differs from its sister-genus, Aname L. Koch, by the lack of a prominent asetose ventral depression on the pedipalpal tibia and the medium-sized mating spur on tibia I of males. This depression is a characteristic of all species of Aname examined to date, and represents a newly recognised character system in the subfamily. The new genus, named Hesperonatalius, is represented by three new species – H. maxwelli, sp. nov., H. harrietae, sp. nov. and H. langlandsi, sp. nov. – all from arid Western Australia.

http://zoobank.org/References/D5352390-5D21-49DD-A123-A074422EB860

Additional keywords: arid zone, molecular systematics, morphology, systematics.


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